Company lists · Data refreshed September 2026

Top 25 Donor engagement marketing agencies based in the United States

RevenueBase identified 1,366 company matches for donor engagement marketing agencies associated with the United States as of September 2026 and tracks 12,355 professional contacts across them, including 5,159 with verified work emails. New York is the largest hub.

This list covers company matches for donor engagement marketing agencies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built
1,366Companies
12,355Contacts tracked
5,159Verified emails
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The 25 largest donor engagement marketing agencies based in the United States

Ranked by team size
Top 25 of 1,366 company matches for donor engagement marketing agencies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLos Angeles, CA, United StatesHQ recorded Sep 28, 202610001+756 contacts →

Exact match

“Ultimate Minds is a professional consulting and marketing firm dedicated to empowering businesses, nonprofits, and startups with smart, affordable, and results-driven solutions.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026501-1,000728 contacts →

Exact match

“For over 75 years, CCS Fundraising has empowered many of the world’s greatest organizations to advance some of the most important causes in history.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchPlano, TX, United StatesHQ recorded Sep 28, 2026201-500492 contacts →

Exact match

“RKD Group is the trusted growth architect for nonprofits.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchAlpharetta, GA, United StatesHQ recorded Sep 28, 2026501-1,000461 contacts →

Exact match

“We help more than purpose-driven organizations grow and amplify their impact on the world by providing transformative technology and services that enable organizations to grow…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchCherry Hill, NJ, United StatesHQ recorded Sep 28, 20261,001-5,000342 contacts →

Exact match

“Our motto says it all: We Help People Who Help People.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchAlexandria, VA, United StatesHQ recorded Sep 28, 2026201-500282 contacts →

Exact match

“Reingold is a full-service strategic communications and marketing firm, helping clients tell stories that get results.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchWarrendale, PA, United StatesHQ recorded Sep 28, 2026201-500280 contacts →

Exact match

“TrueSense Marketing is a full-service, strategic, direct response fundraising agency and direct mail marketing company.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchChagrin Falls, United StatesHQ recorded Sep 28, 2026n/a195 contacts →

Exact match

“At Boom, we develop cross-media strategic marketing and public relations for our clients that convince their target audience to solicit their business, attend their event or…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchPhoenix, AZ, United StatesHQ recorded Sep 28, 202651-200191 contacts →

Exact match

“Our mission is to move the needle on global generosity by helping nonprofits better connect with and inspire their supporters.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchPoulsbo, WA, United StatesHQ recorded Sep 28, 202651-200170 contacts →

Exact match

“Masterworks is a marketing and fundraising agency that helps Christian organizations of all shapes and sizes fully accomplish their missions in the world by providing a complete…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchLenexa, KS, United StatesHQ recorded Sep 28, 202651-200158 contacts →

Exact match

“Summit Marketing is an integrated marketing communications firm with a track record of success in fundraising for nonprofit organizations and in sales and channel development for…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchFargo, ND, United StatesHQ recorded Sep 28, 202651-200137 contacts →

Exact match

“AGP partners with mission-driven organizations nationwide to strengthen donor engagement and support long-term, sustainable performance.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchBoston, MA, United StatesHQ recorded Sep 28, 202611-50133 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchBerkeley, CA, United StatesHQ recorded Sep 28, 202651-200112 contacts →

Exact match

“Our team of expert consultants develops innovative direct marketing-driven donor development programs for exceptional nonprofit causes like yours.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchWest Des Moines, IA, United StatesHQ recorded Sep 28, 202651-200109 contacts →

Exact match

“In business since 1962, The Stelter Company is an integrated marketing agency that provides nonprofits with the insights and strategies needed to optimize revenue across the…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchBend, OR, United StatesHQ recorded Sep 28, 202651-200106 contacts →

Exact match

“Zuri Group partners with nonprofit organizations to turn big ideas into reality.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchMonrovia, CA, United StatesHQ recorded Sep 28, 202651-20095 contacts →

Exact match

“OUR AGENCY: BDI is a full-service, omni-channel, marketing and fundraising agency for nonprofits.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026201-50090 contacts →

Exact match

“Up Fundraising is an Experiential Fundraising, Marketing and Brand Building company.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchAtlanta, GA, United StatesHQ recorded Sep 28, 202651-20083 contacts →

Exact match

“At MarkeTeam, we’ve spent the past 30 years doing good work that does good.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchTroy, MI, United StatesHQ recorded Sep 28, 202651-20080 contacts →

Exact match

“For organizations of all sizes and types, Phoenix Innovate is a marketing innovator that can be counted on to use its passion, vision and creativity to identify and solve business…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchLyndhurst, NJ, United StatesHQ recorded Sep 28, 202651-20079 contacts →

Exact match

“Marts & Lundy serves as a trusted partner to mission-driven organizations whose bold aspirations are realized through the power of philanthropy.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchWashington, DC, United StatesHQ recorded Sep 28, 202651-20074 contacts →

Exact match

“Avalon is a full-service fundraising consulting agency helping nonprofits realize the full potential of their direct marketing programs through multi-channel fundraising…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchSan Francisco, CA, United StatesHQ recorded Sep 28, 202651-20070 contacts →

Exact match

“Media Cause is a mission-driven marketing and creative agency that helps nonprofits grow and accelerate their impact.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchWashington, DC, United StatesHQ recorded Sep 28, 202651-20066 contacts →

Exact match

“C+K is a marketing and advertising company based out of 1640 Rhode Island Ave NW, Washington, District of Columbia, United States.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchBrooklyn, United StatesHQ recorded Sep 28, 202651-20065 contacts →

Exact match

“Powering Community-Driven Fundraising Worldwide Charidy empowers nonprofit organizations to mobilize their communities and unlock extraordinary generosity.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 1,366 donor engagement marketing agencies based in the United States

See the full list, filter by size, metro and specialty, and access 5,159 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Donor engagement marketing agencies based in the United States at a glance

As of Sep 28, 2026
41.8%Verified-email coverage
9.0Average contacts per company
1-10Median size (employees)
5.3%Largest-city concentration · New York
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
1,016
11-50
279
51-200
53
201-500
9
501-1,000
5
1,001-5,000
2
10001+
2

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,366 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “donor engagement marketing agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 5,159 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “donor engagement marketing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many donor engagement marketing agencies are there based in the United States?

RevenueBase identified 1,366 company matches for donor engagement marketing agencies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Lucas Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most donor engagement marketing agencies?

New York leads with 73 company records, followed by Washington (53) and Chicago (32).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 5,159 professional contacts with verified work emails tracked across these 1,366 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.